18094869 has 24 divisors (see below), whose sum is σ = 29123640. Its totient is φ = 10749312.

The previous prime is 18094861. The next prime is 18094883. The reversal of 18094869 is 96849081.

It can be written as a sum of positive squares in 4 ways, for example, as 5349969 + 12744900 = 2313^2 + 3570^2 .

It is not a de Polignac number, because 18094869 - 2³ = 18094861 is a prime.

It is a super-2 number, since 2×18094869² = 654848568254322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 727 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (1213485).

Almost surely, 2^18094869 is an apocalyptic number.

It is an amenable number.

18094869 is a deficient number, since it is larger than the sum of its proper divisors (11028771).

18094869 is a wasteful number, since it uses less digits than its factorization.

18094869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381 (or 5378 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 18094869 is about 4253.8064130846. The cubic root of 18094869 is about 262.5337534828.

The spelling of 18094869 in words is "eighteen million, ninety-four thousand, eight hundred sixty-nine".